文章基本信息

标题：Seasonal dynamics and phytoplankton diversity in high mountain lakes (Jöri lakes, Swiss Alps)
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作者：Brigitte HINDER ; Matthias GABATHULER ; Beatrice STEINER 等
期刊名称：Journal of limnology
印刷版ISSN：1129-5767
电子版ISSN：1723-8633
出版年度：1999
卷号：58
期号：2
页码：152-161
DOI：10.4081/jlimnol.1999.152
出版社：Istituto italiano di idrobiologia
摘要：The development of the phytoplankton in two years with very distinct weather situations was compared. In 1996, the ice on Jöri Lake III melted in mid June, summer stratification persisted during two months, and ice began to build up again in mid October. In 1997, the ice melted only at the end of July, which strongly influenced the development of the phytoplankton. Stratification persisted during two months and the lake froze up towards the end of October. The average chlorophyll-a concentrations were lower in 1996 than in 1997, which reflects the rather high temperatures and stable weather conditions in 1997 after the late melting of the ice. These observations lead us to suggest that the duration of the ice-free season is less decisive for biomass production than the weather conditions during this period. However, the date and duration of melting of the lake ice strongly influence the development of algal species that are typically observed in early season.
关键词：phytoplankton; community structure; seasonal dynamics; mountain lake; meteorological conditions